Sensorless FOC Using High Frequency Injection (HFI)

In this video, I share my experience experimenting with High Frequency Injection to obtain rotor position estimation without using any physical sensors on a motor. There are still many things that need improvement, especially in terms of reliability at higher torque. But I hope this experiment can be useful for those of you who are exploring motor control as well!

References:
https://ieeexplore.ieee.org/document/8746146

https://ww1.microchip.com/downloads/en/DeviceDoc/TB3220-Sensorless-Field-Oriented-Control-of-PMSM-for-Appliances-DS90003220A.pdf


Music track: Exotic by Luke Bergs & Lichu
Source: https://freetouse.com/music
Copyright Free Music for Videos


Chapters:
00:00 - 00:51 - Intro
00:51 - 04:35 - How HFI Works
04:35 - 07:15 - HFI Implementation
07:15 - 07:58 - Simple Initial Position
07:58 - 08:56 - Simple Switching Algorithm Between HFI and SMO
08:56 - 11:54 - Result

#electronics #robot #control #bldcmotor #foc